Compare
Remove

YT Industries YT Jeffsy Primus 2021

2021 Youth
Estimate price | 1,899$
Weight | 12.7 kg
Open compare Use advisor
Yt Jeffsy Primus 2021

Bike details

Overview

Key information split into simple groups.

Bike summary

  • Category
  • Frame Aluminum
  • Wheels 24"
  • Travel Front 130mm
  • Travel Rear 130mm
  • Fork Manitou Machete Comp
  • Groupset NX, X1
  • Suspension Full
  • Drivetrain 1 × 11
  • Brakes Hydraulic Disc
Sizing

Recommended size guide.

  • One Size

    135cm - 150cm

Parts list

Components

Main components, grouped by system.

Bike components

Frame

Frame

Aluminum

Suspension Fork

MANITOU Machete JUNIT, 24“ | 130mm | 15x110mm | 42mm Rake, adjustable Low-speed rebound, air pressure

Rear Shock

MANITOU McLeod, 190x40mm, 4 times adjustable compression, rebound, air pressure

Drivetrain

Rear Derailleur

SRAM NX, 11-Speed

Shift Levers

SRAM NX, 11-Speed

Cassette

SRAM PG1130 Eagle, 11 - 42 T | 11-Speed

Crank

SRAM X1 Eagle, 155mm | 30T | DUB

Wheels

Rims

SUNringlé DUROC, 24“ x 30mm | 110x15mm | 148x12mm

Tires

MAXXIS MINION DHF | DHR II, 24“ X 2,4, 24“ X 2,3

Brakes

Brakes

SRAM GUIDE R, Rotor CENTERLINE 160mm/160mm, adjustable reach

Cockpit

Stem

SDG Jr, 45mm

Handlebar

SDG Slater, 20mm Rise | 650mm Width

Grips

SDG Slater Jr, Lock-On

Headset

Acros AZX-576, High Cap

Seat

Saddle

SDG Fly Jr, YT Custom

Seatpost

SDG Jr, 31.6mm | 8MM OFFSET I RISE: +/-13° Alloy

Fit data

Geometry

Numbers for sizing and ride feel.

SizeOne Size
Stack Reach Ratio
1.376 mm
Bottom Bracket Height
316 mm
Front Center
650
Rake
45 mm
Stack
509 mm
Reach
370 mm
Top Tube Length
495 mm
Seat Tube Angle
76.2 °
Seat Tube Length
315 mm
Head Tube Angle
65.5 °
Head Tube Length
95 mm
Chainstay Length
395 mm
Wheelbase
1045 mm
Bottom Bracket Drop
4 mm
Wheels24"
Rider Min Height135 cm
Rider Max Height150 cm

Model Overview

Jeffsy Primus completes the Yt Jeffsy model. There are 64 bikes that carry this model name. Check out the entire range from 2021 of this model, by clicking this link.

Model range prices

YT Jeffsy Primus 2021 is the cheapest bike model and costs 1899$. YT JEFFSY Pro Race 29 2021 is the most expensive one and costs 5299$.

Safety

When cycling always take safety very seriously. Wear a helmet, obey the traffic rules and wear hi-vis clothes. In short, take care of yourself so others can take care of you.

Average price for Mountain bikes

If you want to purchase a solid Mountain bike, it is important to know that the average cost is 616$. However, this doesn’t mean that if you spend less money on a Mountain bike, you couldn’t get a decent one. To make sure you don’t pay a higher amount than normal for your bike, always do some components analysis and read reviews.

When YT released this model in 2021, its price was 1899$. Comparing this to the average Mountain bike price, we see that the price is 208.28% higher.

Mountain bikes average weight

If we make a quick analysis of the average weight of a Mountain bike, we get 11.4 kg (25.13 lbs). Having an easier bike than average will give you a great advantage on climbs. However, a heavier bike will gain more speed on descends.

Weighing 12.7 kg (28 lbs), the Jeffsy Primus model is considerably heavier than average. In conclusion, the average Mountain bike weighs 11.4% less than Jeffsy Primus.

Overview of components

Fork

The Manitou Machete Comp is included from the factory. It has a travel distance of 130mm. Bike forks are good shock absorbers and provide a smooth ride and a great experience. In short, make sure you choose one with a decent fork when you purchase your dream bike.

Rear Shock

The Jeffsy Primus has a rear shock with a travel of 130mm. The model MANITOU McLeod is the one installed in this bike. Rear shocks offer better comfort, better traction, and better cornering. This allows for quicker riding on rough roads and trails. In conclusion, to increase your riding experience, get a bike with a rear shock if possible.

Wheels size

As for the wheels, YT Jeffsy Primus 2021, has a 24″ aluminum model. This wheel size is used on bike models like BMX, children, or folding bikes. In conclusion, they are great for flat ground or very easy trails.

Brakes

Nothing is more important on a bike than its ability to brake properly. YT Jeffsy Primus is equipped with Hydraulic Disc brakes. With Hydraulic Disc brakes, you’ll be able to stop on a dime, even in wet or icy conditions. To sum up, these are ideal for anyone.

Sizes

This bike has one size only, so it might not fit you. In short, make sure you double-check if it fits you.